More bodies have been found in mass graves in northern Mexico, bringing the current toll to 116. Anchor Marco Werman speaks with Julian Miglierini of BBC Mundo about the drug cartel believed to be behind the murders.

Mexican troops say they have discovered 72 bodies at a ranch in the north of the country. The bodies were found after a shoot-out with suspected drug cartel gunmen, the military said. The BBC's Julian Miglierini is following the story from Mexico City.